William j



(No Model.)

W. J. -BAYRERI` sHBARs FOR METAL.

No. 372,785. Patented Nov. 8, 1887.

Rv FETERS. Pholoidhngnphcr. Wishingtn. D. C.

iINITno TATES ATI-:NT

Fruen.

WILLIAM J. BAYRER, OF SOUTHINGTON, CONNECTICUT, ASSIGNOR TO THE PECK, STOW t WILCOX COMPANY, OF SAME PLACE.

SHE ARS FOR Nl ETL.

SPECIFICATION forming part of Lettere Patent No. 372,'785, datec'l November 8, 1887. I

Application filed August 1, 1887. Serial No. 245.800. (No model.)

.To aZZ whom it may concern.-

Be it known that I, WILLIAM: J. BAYRER, a citizen of theUnited States, residing at Southington, in the county of Hartford and State of Oonnecticut, have invented certain new and useful Improvernents in Shears, of which the following is a specification.

My invention relates to the class of shears that are used for cutting sheet metal, such as are shown and describedin an application for United States Letters Patent of even date herewith; and the object of my invention is to provide shears of this class with means for cutting stove-pipes or the like thin metal hollow ware.

Referring to the accompanying drawings, Figure 1 is a side view of my improved shears, and Fig. 2 is a front elevation of the same with the maudrel or rest removed.

zo In the drawings, the letter a denotes the bed, and b a horn rising from the bed and adjustably attached to it.

The letter c denotes a shaft that is borne in a suitable chamber in the end of the horn, and

on the shaft are a number of teeth that mesh With a rack which .is-attached to the bladebearing plate d, this blade-bearing plate cl being held in sliding contactwith. the end of the horn b. The shaft is provided with a lever whereby it may be oscillated; also, adj ustable steps to limit the extent of oscillation of the shaft.

The above mechanisin and its arrangement, but of a different form of bed, being fully described in my United States application before mentioned, a detail description here is unnecessary, andany other known mechanism for operating the blade-bearing plate may be substituted therefor.

40 An arm, e, extends from the bed 4a in line withthe horn b, and on the end of said arm in position to act with the reciprocating cutter ol'` is secured, preferably by a single bolt, a cutter, f, having a circular edge, and in the preferred style forming a complete circle. This arm e is provided with a perforation, e',which also extends through the cutter f, into which the shaft g' of the mandrel or rest gis inserted when it is desired to support a longpiece of pipe whileit is being cut. The gage h isused to determine the length of the section to be cut when vcutting pipe, or to determine the Width of a strip of metal. The shaft h' of this gage is free to slide in the bearing in the lug that projects frorn the bed when not clamped by 55,

the screw h2 and held firmly with the face of the gage at any distance from the cutters when the screw is driven in.

Besides the advantages of adj ustability, ease of Operation, and accuracy of gaging incident to the deviee described in my application previously referred to, this tool has the advantage of being capable of use as a hollow-ware and pipe cutter.

I In order to cut strips of metal the gage h is adjusted to the desired position and the metal fed lengthwise between the cutters with one edge bearing against the gage. When a section of pipe is to be cut, the gage h is set at a distance from the blades equal to the length 7c to be cut off, the rest g'pu't in place, and the pipe thrust over the arm e and circular cutter until the end strikes the face of the gage. Then the cutter d' is reciprocated in the usual manner, rolling the pipe a little after each cut to bring a fresh place under the reciprocating blade. The cutter f and rest g form a mandrel to retain the shape and configuration of the pipe When used this way,as well as serving as a rest to support the article cut in the proper position. If short lengths of pipe or hollow ware are to be trimmed or cut by these shears, the rest g is removed and the cutterf alone acts as support, mandrel, and cutter. Another advantage results from providing a circular cutter in that it can be rotated and a new portion of the periphery presented to perform the cutting when one place becomes dulled by use. VVith my shears pipes and analogous articles can be cut off squarely with a smooth edge.

I clailn as my invention-f 1. The combination, in shears of the withindescribed class, f the reciprocating cutter and a cutter having a circular edge, all substantially as described, and for the purpose set forth.

2. The combination, in shears ofthe withindescribed class, of the reciprocating` cutter and a circular complementary cutter rotarily attached to a proj eetion from the bed, all substantially as described, and for the purpose set forth. zoor 8. In sheurs, the combination of a bed, a arm, and the rest g, all Substantially as de- :5 horn projeetng` from the bed and bearng a seribed, and for the purpose set forth. shnft, :t lover attached to the shaft and having 5. In sheztrs, the combination of a bed, 21` adjustnble steps, u cutter Connecting with end horn projeeting from the bed and bedring a 5 adapted to be reoiprocated by the osoillation of reeiprooating cutter und its operating mechanthe shuft, an arm projeoting from the bed, and sxn, an urm projeotiug from the bed, a cutter 20 a orcnlar cutter seonred to said arm, :111 sub` huvingaciroular edge und Seoured to sadarm,

stantial'y us desoribed, und for the purpose i and the gage h, all snbstantiallyae desoribed, set forth. und for the purpose set forth. to 4. In shears the combination of a bed a: V

horn projeetina from the bed und benring, a TILLYAM J' BAYRER" recprooating cutter and its operating mechml- \Vitnesses: sm, inn arnl projeetng from the bed, n cutter E. E. STOW, having' :L eirenlar edge and. seeured to said HIAL S. GRANNIS. 

